Spray-gun.



l. C. HULL.

SPRAY GUN. nreucnlon mio ofc. la. :91s.

` Panama 11,110,191?.

Attorneys.

UNITED STATES JOHN C. HULL, OF GASIIORT, NEW YORK.

SPRAY-GUN.

Specification of Letters Patent.

Application led December 13, 1916. Serial No. 136,( 96.

To all Iw/iom 'it may concern:

lie it known that l. Join.v C. HULL, a citii zen ol' thc United States, residing at (hisport, jin thc county of Niagara and State ot' New iorlo-have invented :renew und useyfiil Spray-(hui, ot which the Liolloiving is a specification. A

The device, forming the subject matter ot' this applicationis a Liin o1 nozzle, adapted to be employed primarily vfor sprayingY fruit trees.

.The invention ziiius to provide, in :i do vico of this kind, through thc insti-innen tal'ity of a single rotary viilvc, ine-:ius ivhereby tlirec important results nniy he brought about. These results are as follows: first, changes iu 'the range. of the spray proceeding rolii thc'guii; second, auepiinsion and ii` contraction of the spray `proccinling!I from '20 the. gun, to theend that a relatively narrow area may be treatin a relatively"tix-eipart'of the structure;

f L1@auilrlzare 4dingrainrmitic or ncomparatively wide ed; and third, a. e'ning: oi. the quantity tif-liquid delivered, and .a completo sliiittingr, ofi' of the ioiv :it-thc wiil o't'4 an operator. Another object of ithe invention is to pro- 1 vide a; spray gun in which the valve audits actuatingr part are resiliently advanced, so that the valveinay cooperate with the discharge element ot tho gun to cifeit a water BiO-.tight jioiirit-l'ietiiieen tho valve and the diS- cliarge clement of the gun..

Another obj-ect ot the invention is to provide, in Lepray gun, a. vali'e which has n movciiiei'it'on the actuating; inizi-ober, tothe. euri that the valve may i'oi'iiieratc l'with :i 4 relatively 'fixed part ot 1the, device, 'creo "l-,hiii'gli th-e part-.otthe `device, Vinn-y bey iv'orfiror `somewhat".irregular in forni. Another object of the invention to pro,-

40 ltideiioiiel-incaiis whereby through "the in-` stririiientiility "of it comparatively short han' rel,I ordinarily not more than one, tivo or three feet lonL. ii Yspray may be 'applied to high trees,` it boingr 'i'iossible by a-simple ma 45' nipiiliition o't' the. parts .of the device to ap-y ply af fine. Iniiet or spray to' loirr bushes or trees within close-range, without dislodging the. f riiit therefrom. diie to 'the impact of a heavy stream.

504. fith thc above and other objects in view *iiili'ieh-ivi'll'appear as the description pro needs; thc invention resides `in the combinai letriils ot'iionstriietion hereinafter described and cliiii'ned, it i being understood' that ehnngcs in the precise cn'ihodiment of the inrention herein disclosed cnn be made ivf-itl in the scope oi whit is claimed, without clcparting from the siirit of the intention.

1n the accompanfingr drawings-- i Figure 1 Ashows u longitudinal section, a spray gun consti-'noted in accordance with theI present invei'iiion, parts appearin'gin elevation, v x

Figs. 2, 3, 1 and 5 are diagrammatic end elci'ations wherein zi part of the easing which carried a iv4 the-forward end of the barrel has been riinoi'ed in order to show the' relations exist iig between the ports of thc valveand the ioitf; ,in a relatively fixed part of tho device, during oi'ierations of viirions Isorts;

Figs. G, 7, 8 and Q .are sectional views, correspondini.;i 1'eso-ectii-'ely to 2, 3, 4 and 5., and illustra tingtllre relations existing vbetween thefports; inthe vialvczindthe ports',`

flge.' :10,5 ieivs, illustrating; in a ,irene-ral way, the ciniractcr ,t the. st'ieain produced4 when the valve is set, 1espe;tively, as shown inlFigs.

Fig. lfigs ai' rear elevation vslioivirrg; the front-'plate vidi-ich. constitutingn pi'irt of the lcasing, is applied to 'the forward eiil of the, barrel otiithe gun.

Tlierdcvice foriiing the subject mattei' of thi@application pseterahly made ot inetiil thioiipghoiit; avitli the exception of washers and tliel'i'lr'e, and includes a cyiindiicai bai.'-

,rel 1. -.\t this point it should be noted that the dcviocflherein disclosed is to hetlistingiii'sli'ed elearlyfrom structures of'that-kind which employ lalong barrel which. is thrust 'iipii-'iirdly among thebiianehesot the tree to be spr veldi4 I,n. 'ilio present instane, oi'ving" Ito certain vstriictiires to he dcscribedhefein; atter, high trees can l'ic'sprlfiyed frorn 'the ground and, accordingly, the barrel. 1 ordi'- nnrily is -not'inorc than two feet in length,l valthough this dimension may be departed* from. the intention being to direct attention strongly tol tlicaet that aV short nozzle` iii'pw blc for use from. the ground, is providedif l A coupling 2 is att-aeliedtothe; fr'enjdof Ythe barrel 1, pre'rably byv thi-eiiding,r vThe coiiplngis'rpro igiedjwitliii vfotilvvai" .ber 3 anilavith iv reiiiry cliniiilier, slightly sii'ialler n iha'rineter than thehehamcod, tlic'coiipliiig Zfis sup);

nii4

.ni pnlated readily platel tl hasv a' -forwardly i v"1`liehead`12 vis provided onto the 11"-ot the front plate 9.

insgy journa'led in the gland, is.

secured to the exposed end o f the actuating 'member ln any desired .the rear chamber V'lof the coupling end of the spring 29 abuts aguil-lstthe shoulcon ling 2.

he invention comprises a frontplate 9 .shown 'in 'rear elevation in. Fig. 13. The

front plate 9 preferablv is threaded onto the forward end of tne barrel 1, and whe'n this conrseis followedg'it will be found desirable to provi-de the front plate wi th parallel edges `10,'so that` the front plate ma be niaby a wrench. 'l`he .front presented bos-S11 ot' lest,` diameter than the body portion ot` th e front 'fil'at' 'Jfhenuna-ral l2 denotesa Lhead which, roughly sneaking, is ofY cup-shape.

portion'H, adapted to be engaged by'a Wrench so that the headv may be threaded In front of the polygonal part 14,1111; head 12 is of circular contour as shown at ably but not necessarily are o|')posite'l y disform, the ports 117 onverging toward] posed and .are of parti-c1rcula'r end edges of the the -geonietrical center of the' end wall .1(f A cap 18 is threaded ontothe fore-'ard 'p' t ln the fo'rwav p, 18j there' is a 'rel atii'el y la''ge e@ h efi'hing anfinwardly projeotlni.vr [lange 2 0 ny discharge orithe opening 1 inthe cap. The numeral 23 d,en'ates a2'washerabutting against the plate 21v and' detininga chamht'rr-:L

cap 1H is threadedinto plat-con tliehead l2,

bound be- 'l` ho numeral denotes anictiiating i memher.-which,"For lightness, maybe in lhe.

actuating memlwr 25 behandle 2li fornr'ot' a tube, the

shown at. 27, "the handle. 21" c1institutingr .means for rotating, the actuating,'member.

- \Vitliin the contour-lot" l l|e-e 1 'a|}'^ lin; `actl'lating member2 can ries a'giralgmtment 2H which may be in the form .of a cross pin insorted through the `actuatingmember. A. compression spring 2 9 surrounds a portion of the aetuatiner member' and is loca-ted in ()ne end of the.

A pin 234 or with a polygonal The 'head 1 2 includes a forward end wall lp'r'o- 'of thel head 12, in'to the chamber 24,

manner` as der 6,'and the'otber end of the'spring enugesthe abutment 2b ofthe actuating inem- The iwme'ral 30 denotes a valve, preferably in the forni ota circular disk, mounted to `rotate in contact with the rear face of the 'end' wall 1(5 of thehead 12. The valve BO 'has ports 31 shaped like the ports 17 in the end wall 16 of the head 12, and of approximately the san'ie'siz'e as the ports 1 7. The

ends of the p orts 3l` are 'beveled as shown at 32,-'ei-rclunferentally of the valve 30. The

l f alre 3U comprises a rearwardly projecting boss 33 ha ring: a recess b5 in which the tor- \\'ard end of lhe actuating'member 25 is recelvcd.l 'l he boss 323 has a cross opening ll.

It lis to bel observed that the recess '35 ls slightly larger I n diameter than vthe lactuatingl member 2T. and lhal the openingll is slightlylarger-,iu diameterA than the, pin IH. As a consequence, the valve 20 isloosely mounted on the forward endiot' theactuating nie-mlm' ,25.

Generally consh'lered. the. i|a-ratioli of the structure is as follows. The liquid to be. sprayed passes by way ot' the linlet 7 into the barrel l, through the. ports Ill in the valve 30, through the por-ts 17in: the end wall 16 and out 'l`fhe utility of this eonstruction will be made manifesthereinafter.

like. securingr device is mountedf'. in the cross opening:v 3G and passes through the forward end ot the actuatingy member 25.1

through 'the discharge oritice 22 inthe..

'l`he vspring 2S) allyances the actuating member and the Valve 30 so-that the valve 30 maintains a. liquid-tight contact witlrthe rear face of theI end wa'll loof-the .bead 12. Because, as hereinbetore indicated..

the. `valve Il() s loosely' mounted on the for- \'\"ard. ei'nd oi' the actuating member 25,-the

ioo

`valve wi-ll copera'te pro| ie|'ly with the rear vface of the end wall 'lo'. eren though the; d wall ,may 'be worn or dlsposed out of r `.tangularrelation tothe axlsot the barret-l.

'l"he. ports 2*1 in the Valve 3() are small enough so that thel beveled surfaces 3 the ports can be housedl'a-hiinl the ont! 'lo when the -ports ll ot the valve and the 'lhe parts are shown thus arranged iLrFigs.

2 a| u| Under sueli cireumstances, two streams are dischaliged into thel chamber 24', through .the alined or coinciding .ports 431 and 17. 'l`hese two streams more lolw: rdly in straightl lines'and impinge plate 2l. ward earhother, --alul How (nihyardly through the discharge. ori tiet-22 in the 'plate lluder the eirculnstamies' above. -men'- tioned',.the stream proceeds from the. disaganst the "lhe streams then are. directed tocharge. oriice. 22 i'n a long slightly tapeex-l as indicated in l"ir. l0.- Sueh astream form ' i and may be used for sprayhas a long range,

,oriliee 22. the stream shown in Fig. l0, al-

though having a long range, is withal in the forni ol' a spray, and will not knock olil or injure the fruit on the tree which is beilig sprirved,

Note Figs. il and 7. 'lfhrougli the instrunientality of the handle 2li, the actuating` member 2: `and the valve El() may be rotated slightly` until the beveled portions 32 of the ports ill in the valve lil are visi-ble through the ports 1T in theend wall lo. When the valve 2() is disposed as shown in Figs. and

7, ythe effective size ol' the ports 17 in the end wall 1li4 has been decreased. The two streams which are discharged through the.'

ports il and 41T will, accordingly, be discharged witli greater velocity than -when the .valve is disposed as showirin 1*`i` L). and (i. Further, because the beveled ces 32 ofthe ports 3l are now exposed to the streams as the same pass thronglrthe ports ill and 1T, 'the twostreams will be given a whirling motion within the chamber 24. Owing to this whirling motioi`i, two results are produca-l. First, the liquid discharged is lessened.- Secondly, the

s ti'eain shown in. Fig. 1l islllade -to .Hare

. more' widely than the streamsliown in Fig.

'10, the' rang*y heilig decreased, land the arca which is covered being enlarged. g

Let4 it be sup iosed that the valve 30 isr'otated still fur-tier, unt-il the Vports'l in the valve'O and the ports 17 in the endwall 16 .-J `as Shown' irFiFs. 4 undv `8. The y] mot-ion is stil imparted to' lille liieiotiiting velocity ofthe liquid is whli liquid,

increased', more than wheirthe parte are disposed esj-shown in Figs. -3 `und 7 and-fthe 4stream emanatingfrem the ori ce' 22' is ijnaily,l to flare still more, as shown in 1 ig..12. E llyi,'yi1 f;'th^e valve BOS: rotated until,

dleetedin Fig. 5, tsports Bl areenout rof registration with'the ports'l' f7 yin-t e endgwall 1 6, `then the flow is cnt olf the sub'ect rriatte'r` ofy this application 'pega desees t ie followin adyantagesithe opere-V g-,f 55,

` lng "011' the 'fentirely,' Lus will-be evident when Fig. 5- is conilmred with I4 `i `n 9` v 1' Generally stated, Ythe structure forming torinay spray-the iighest trees -wliile standaeeiiia luider, 'mf-tc use alom: nozzleijthe quantity of' bei', tlie outer .lneiiber Vhavingja'discharge the ports of the outer member".

r ound,iit beingunneccsscry toi invention includes a combined means for stopping the flow entirely,- and for regulating the flow, this regulation consisting Iirst m 'varying the range, secondly, in alteri ing the character o;E the. stream, so far as the plant-ity disch-urged is concerned, and third, in regulating theurea to -which the liquid is applied. At no time does' the structure 66 herein disclosed produce a heavy compact i stream which, appl aed to fruit, would injure the same or dislo( ge it from the' trees or bushes. A means, represented by the spring 35), is previded, whereby the valve 30 may be advanced. yioldingly, and, sincethe valve is loosely nwunte'd on the Vforwarclemi gf the actuating member 25, the valve will cooperate"'broperly-\\ ith the-lined element 16 against which it a'buts. I 76 barre-'1, the casing inclndin an inner member represented by the en wall 16 of the 80 head 12, an outer member represented by the plate 21, and a' rotary valve 30 coperating with the inner member. .s- M 4 Having thusfdes( ri bed the invention, what isl claimed is A spray gun comprising a barrel; u cusing .carried by tle `barrel and. including inner and outer membersI defining a chainorifice, and the inner member having ports 90 Ldiscln'irging linto the' chamber and against tlie outer member'beyondthe peiipliery'of ,the-discharge orifice; n.1 rotary" valve iooperati-ng witliQtheinner member and having ports which lmove into and out of co- 9.15,` l incidence with the ports of the inner mem- ,ber when. thevalye is rotated, the ports of the Valve ineludirg inclined surfaces imparting a whirling motion to the liquid4 ro` (seeding thi-ou h the ports into theehum er 'ie inner' member and of t valve being of such a elative size times, the-inclined sur' aces of 'th 'the valve may be housed behind th member,- thereby to A permit the vliqui traversethe ports in straight -linesitow'a d 4 Vinio'ny that I claim the forego my ow'n,. I have hereto allixed my .s in the presence of two witnesses.

, v f JOHN C. H Witnesses: 

